The Switch,thermostatic, cataloged under National Stock Number 5930-00-004-7749, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Master Control Systems Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-004-7749 |
| Primary Part Number | 720488 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Master Control Systems Inc |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | ELECTRON TUBE BASE |
| Mounting Method | PLUG-IN TERMINAL(S) |
| Style Designator | RECTANGULAR, OPEN FRAME |
| Temp Sensing Element Type | INTERNAL SENSOR |
| Body Length | 3.000 INCHES NOMINAL IN |
| Media for Which Designed | GAS OR LIQUID |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 24.0 DC AT SEA LEVEL SINGLE VOLTAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 720488 PRIMARY | Master Control Systems Inc (USA) |
NSN 5930-00-004-7749 is a Switch,thermostatic, manufactured by Master Control Systems Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-004-7749 has 1 manufacturer part number on file: 720488 (Master Control Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5961-00-532-6529. Verify interchangeability with system specifications before substitution.
Key specifications for 720488: Overall Height: 2.000 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: ELECTRON TUBE BASE; Mounting Method: PLUG-IN TERMINAL(S). 9 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.